.title {
    position: relative;
    text-align: center;
    font-size: 14px;
    color: #999;
    overflow: hidden;
    padding: .6em 0; /**把高度撑起来*/
}

.inner {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    line-height: 1px;
    border-left: 9999px solid #ccc;
    border-right: 9999px solid #ccc;
    padding: 0 10px;
}